1001122212211 has 48 divisors (see below), whose sum is σ = 1134886846464. Its totient is φ = 882161280000.

The previous prime is 1001122212163. The next prime is 1001122212217. The reversal of 1001122212211 is 1122122211001.

1001122212211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1001122212211 - 2³⁹ = 451366398323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001122212217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122218126 + ... + 122226316.

It is an arithmetic number, because the mean of its divisors is an integer number (23643475968).

Almost surely, 2^{1001122212211} is an apocalyptic number.

1001122212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001122212211 is a deficient number, since it is larger than the sum of its proper divisors (133764634253).

1001122212211 is a wasteful number, since it uses less digits than its factorization.

1001122212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524 (or 8513 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1001122212211 its reverse (1122122211001), we get a palindrome (2123244423212).

It can be divided in two parts, 10011 and 22212211, that added together give a palindrome (22222222).

The spelling of 1001122212211 in words is "one trillion, one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred eleven".